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Arylamine compound and application thereof in organic electroluminescent device

A technology of compounds and aromatic amines, applied in the field of display devices, can solve problems such as development that has not been fully realized, and achieve excellent hole migration ability, high efficiency, and the effect of promoting injection

Pending Publication Date: 2022-05-13
JIANGSU SUNERA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the development of materials for stable and efficient organic material layers for organic electroluminescent devices has not been fully realized

Method used

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  • Arylamine compound and application thereof in organic electroluminescent device
  • Arylamine compound and application thereof in organic electroluminescent device
  • Arylamine compound and application thereof in organic electroluminescent device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0120] Example 1: Compound 15

[0121]

[0122] In a 500ml three-neck flask, under the protection of nitrogen, add 0.01mol raw material A1, 0.012mol raw material B1, 0.02mol sodium carbonate, 150ml toluene, stir and mix, and then add 1×10 -4 mol tetrakis(triphenylphosphine) palladium (Pd(PPh 3 ) 4 ), heated to 105° C., refluxed for 24 hours, took a sample and spotted a plate, and if no raw material A1 remained, the reaction was complete. Afterwards, naturally cool to room temperature, filter, and the filtrate is subjected to vacuum rotary evaporation (-0.09MPa, 85°C), and passed through a neutral silica gel column (silica gel 100-200 mesh, the eluent is dichloromethane:petroleum ether=1:1 (volume ratio)), to obtain intermediate G1. Elemental analysis found values: C, 67.45; H, 3.07; Br, 20.45; Cl, ​​9.03. MS (m / z) (M+): Found 389.91.

[0123] In the dried 100ml three-necked bottle, under the protection of nitrogen, add 0.012mol magnesium chips, 0.1g iodine element (I ...

Embodiment 1-31

[0166] According to the method of comparative example 1 of device preparation, the difference is that the organic materials in steps b), c), and f) are replaced by the organic materials shown in Table 3, wherein ET-1: LiQ, ET-2 The ratio of :LiQ, ET-5:LiQ, ET-23:LiQ is 50:50.

[0167] table 3

[0168]

[0169]

[0170] After the OLED light-emitting device is prepared as described above, the cathode and anode are connected by a known driving circuit, and various properties of the device are measured. Table 4 shows the device performance results of Examples 1-31 and Comparative Examples 1-11.

[0171] Table 4

[0172]

[0173]

[0174] Note: LT95 refers to the time it takes for the brightness of the device to decay to 95% of the original brightness when the brightness is 1500nits;

[0175] Voltage, current efficiency and color coordinates are tested using IVL (current-voltage-luminance) test system (Suzhou Forstar Scientific Instrument Co., Ltd.), and the current ...

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Abstract

The invention discloses an arylamine compound and application thereof in an organic electroluminescent device, and belongs to the technical field of semiconductors. The structure of the arylamine compound is shown as a general formula (1), arylamine serves as a basic framework of the compound, pyrene and adamantane are connected to the same phenyl in the arylamine, and due to the connection mode, the compound has the excellent hole migration capacity, membrane phase state stability and weather resistance; when the arylamine compound is used as a hole transport material of an organic electroluminescent device, the effects of improving the efficiency of the device and prolonging the service life of the device can be shown.

Description

technical field [0001] The present invention relates to the field of semiconductor technology, and more specifically, relates to a novel aromatic amine compound and its use as a hole transport material in an organic electroluminescent device. A light emitting device, and a display device including the light emitting device. Background technique [0002] The carriers (holes and electrons) in the organic electroluminescent device (OLED) are respectively injected into the device by the two electrodes of the device under the drive of the electric field, and meet in the organic light-emitting layer to recombine and emit light. High-performance organic electroluminescent devices require various organic functional materials to have good photoelectric properties. For example, as a charge transport material, good carrier mobility is required. The injection and transport characteristics of hole injection layer materials and hole transport layer materials used in existing organic ele...

Claims

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Application Information

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IPC IPC(8): C07C211/54C07C211/58C07D307/91C07D333/76C07D209/88C07C211/61C07D405/12C07D213/38C07D209/86C07D307/81C09K11/06H01L51/50H01L51/54
CPCC07C211/54C07C211/58C07D307/91C07D333/76C07D209/88C07C211/61C07D405/12C07D213/38C07D209/86C07D307/81C09K11/06C09K2211/1011C09K2211/1014C09K2211/1029C09K2211/1088C09K2211/1092H10K85/624H10K85/622H10K85/615H10K85/631H10K85/636H10K85/626H10K85/633H10K85/654H10K85/6576H10K85/6574H10K85/6572H10K50/16H10K50/15
Inventor 唐丹丹王芳李崇张兆超崔明
Owner JIANGSU SUNERA TECH CO LTD
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